Finding the Fourth Proportional to 867,456.76, 1,197,096.42 and 485,519.08

Step by Step Solution

1. Step 1: Write the proportion equation
   867,456.76 : 1,197,096.42 = 485,519.08 : x
2. Step 2: Convert to fraction form
   867,456.76/1,197,096.42 = 485,519.08/x
3. Step 3: Cross multiply
   867,456.76x = 1,197,096.42 × 485,519.08
4. Step 4: Simplify right side
   867,456.76x = 581,213,152,509.69
5. Step 5: Solve for x
   x = 581,213,152,509.69/867,456.76
6. Step 6: Final answer
   x = 670,019.74